The few lifeforms that did exist on Hosrel XI's harsh surface were by far considered some of the most savage creatures in the galaxy.
It was the site of a top-secret Centrality Navy research base, where shield camouflage was developed. After escaping the Imperial blockade of the ThonBoka, Lehesu visited Hosrel XI, looking for help. In response, issued code , signalling squadron to investigate the intruder. The fighters fired on Lehesu, to his surprise and dismay.
The PC game Star Wars: Rebellion spells the planet "Hozrel XI." Additionally, the game mistakenly places the planet in the Moddell sector.